BS/MD vs. Premed

Hi! I've recently been accepted to Indiana University Indianapolis and its new BS/MD program. This is the first year they are offering the program and have accepted 20 students out of 120+ applicants. The program is a 7-year accelerated program that matriculates into the IU School of Medicine. The requirements for staying in the program are a 512 MCAT, a 3.7 GPA, and clinical/research hours set up through the school. My due date to make a decision is April 1st and I won't be getting back all my decisions until the last week of March. Here are my options and let me know what your opinion is!

1) Accept the BS/MD offer

Pros: possible Chancellor's scholarship so I'd only pay for housing, guaranteed acceptance into med school, matriculates into a decent med school, in-state student so med school cost is less, graduating a year early

Cons: IU's first year offering the program, not a school I would have considered if not the program, limits my med school options to only IU, does not have the school pride/student life I am looking for in a college as well, iffy on city campus

2) Attend Purdue University as a Biochem Major

Pros: Strong science program, my favorite in-state school, most cost-effective undergrad option, strong sports/community centered around Purdue, the school I would like to go to in-state, gives the "undergrad experience", has a community/campus I love, gives chance to attend a med school more to my liking than IU

Cons: Does not guarantee acceptance into med-school, must go through the normal pre-med track (take MCAT, extracurriculars, maintain GPA)

3) Attend Northwestern? as a Biology Major

I have not gotten decisions back and will not for another 2 weeks but want to consider this possibility

Pros: Prestige, dream school, a strong pre-med program that could help me into med school, strong student pride/sports, dream campuses with Northwestern's proximity to city and lake, undergrad experience, strong academic community, gives a higher chance of getting into better med school (dream med school is Northwestern)

Cons: rigorous curriculum, does not guarantee acceptance into medical school, must go through premed with the competition of other Northwestern students, very expensive tuition + housing

Thank you for your help and advice!